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ICM7228 Datasheet, PDF (6/17 Pages) Intersil Corporation – 8-Digit, Microprocessor- Compatible, LED Display Decoder Driver
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ICM7228
Electrical Specifications VDD = +5.0V ±10%, VSS = 0V, Unless Otherwise Specified
MILITARY TEMPERATURE RANGE, MJI, DEVICES (Continued)
PARAMETER
TEST CONDITIONS
TA = 25oC
MIN TYP MAX
Digit Drive Current, IDIG
Digit Leakage Current, IDLK
Common Anode, VDD = 5V
VOUT = VDD - 2.0V
Common Cathode, VDD = 5V
VOUT = VSS + 1.0V
Shutdown Mode, VOUT = 2.0V
Common Anode, ICM7228A/C
200
-
-
50
-
-
-
1
100
Shutdown Mode, VOUT = 5.0V
Common Cathode, 7228B/D
-
1
100
Peak Segment Drive Current, ISEG Common Anode, ICM7228A/C
VOUT = VSS + 1.0V, VDD = 5V
Common Cathode, 7228B/D
VOUT = VDD - 2.0V, VDD = 5V
Segment Leakage Current, ISLK
Shutdown Mode, VOUT = VDD
Common Anode, ICM7228A/C
20
25
-
10
12
-
-
1
50
Shutdown Mode, VOUT = VSS
Common Cathode, ICM7228B/D
-
1
50
Input Leakage Current, IIL
Display Scan Rate, fMUX
Inter-Digit Blanking Time, tIDB
Logical “1” Input Voltage, VINH
Floating Input, VINF
Logical “0” Input Voltage, VINL
Three Level Input Impedance, ZIN
All Inputs Except Pin 9
ICM7228C, ICM7228D VIN = VSS
All Inputs Except Pin 9
ICM7228C, ICM7228D VIN = 5.0V
Per Digit
Three Level Input: Pin 9
ICM7228C, ICM7228D Hexadecimal
VDD = 5V
Three Level Input: Pin 9
ICM7228C, ICM7228D Code B
VDD = 5V
Three Level Input: Pin 9
ICM7228C, ICM7228D Shutdown
VDD = 5V
VCC = 5V
Pin 9 of ICM7228C and ICM7228D
-
-
1
-
-
-1
-
390
-
2
10
-
4.2
-
-
2.0
-
3.0
-
-
0.8
50
-
-
Logical “1” Input Voltage, VIH
All Inputs Except
Pin 9 of ICM7228C, ICM7228D
VDD = 5V
2.0
-
-
Logical “0” Input Voltage, VIL
All Inputs Except
Pin 9 of ICM7228C, ICM7228D
VDD = 5V
-
-
0.8
SWITCHING SPECIFICATIONS VDD = +5.0V ±10%, VSS = 0V, VIL = +0.4V, VIH = +2.4V
Write Pulsewidth (Low), tWL
200 100
-
Write Pulsewidth (High), tWH
850 540
-
Mode Hold Time, tMH
ICM7228A, ICM7228B
0
-65
-
Mode Setup Time, tMS
ICM7228A, ICM7228B
250 150
-
Data Setup Time, tDS
250 160
-
Data Hold Time, tDH
0
-60
-
Digit Address Setup Time, tAS
ICM7228C, ICM7228D
250 110
-
Digit Address Hold Time, tAH
ICM7228C, ICM7228D
0
-60
-
-55oC TO 125oC
MIN TYP MAX
170
-
-
35
-
-
-
1
100
-
1
100
20
25
-
10
12
-
-
1
50
-
1
50
-
-
1
-
-
-1
-
390
2
10
4.2
-
2.4
-
3.0
-
-
0.4
50
-
-
2.0
-
-
-
-
0.8
250 115
-
1200 840
-
0
-65
-
250 165
-
250 160
-
0
-60
-
250 100
-
0
-60
-
UNITS
mA
mA
µA
µA
mA
mA
µA
µA
µA
µA
Hz
µs
V
V
V
kΩ
V
V
ns
ns
ns
ns
ns
ns
ns
ns
9-22
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